Improvement in lamps



NITED ATENT rricm IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 2,266, dated April 12,1864.

To aZZ whom, it may concern:

Be it known that I, JAMES R. BAKER, of Kendallville, Noble county, andState of Indiana, havein vented anew and Improved Lamp- Burner 5 and Ido hereby declare that the fol- I lowing is a full and exact descriptionthereof,

reference being had to the' accompanying drawings and letters ofreference marked thereon, forming a part of my specification, in whichFigure 1 is a perspective view of myimproved lamp; Fig. 2, a like viewwith the sliding tube elevated; Fig. 3, a sectional view of Fig. 2; Fig.4, asectional view of the burner as represented in Fig. 1, but removedfrom the lamp-reservoir and Fig. 5, a perspective view of thedetachablewick-tube.

In the drawings, the oil-reservoir or lampbody A has its neck I) mountedwith a metallic collar, 0, in the usual manner and provided with afemale screw to receive therein the male screw of the burner, as clearlyshown in Figs. 3 and 4. In my case the burner con sists, in part, of ashort stationarytube, D, fit ted to seat itselfinto the collar 0, asindicated in the last-named figures. This tube is perforated, as at c,with an aperture of size sufficient to admit the nozzle of anoil-can,for the purpose of replenishing the lamp with oil, as will behereinafter described. It is also provided with a series of smallperforations, f, to admit air to the lamp when burning, and one ofwhich, being somewhat enlarged, serves to receive and support one end,g, of the thumbscrew it of the wick-tube I, while the oppo site endissupportedin the open slot or gain it, formed in the top of the tube D.

The wick'tube I, clearly shown in Fig. 5, is provided with asemicircular footpiece, l, to correspond with the inner portion of thecollar D, and serves to retain the wick'tube in a vertical position inconjunction with the projectingdetent 1, attached to the slidinghalftube N, when the latter is in the position represented in Figs. 1and 4. The office performed by the parts 1 l is also assisted by thetubular form of the sliding half-tube N at the pointm, since such pointor part surrounds the wick'tube when the burner is made to assume theposition shown in Figs. 1 and 4.

The part N, as clearly shown in Figs. 3 and 4, is constructed in theform of a halt tube, with the exception of its extreme upper portion, m,

which, as beforcstatech'is tubular, and is perforated, as at c, in thesame manner and for the same reason that the aperture 6 is made in thecollar D. This half-tube or sliding portion N is made of such lengththat when elevated as shown in Figs. 2 and 3, the tubular portion m willrise above the top of the wicktube I, and, whether elevated ordepressed, is retained in its proper relation to and within the collar Dby stops 1), projecting from the interior of the collar D, and againstwhich the edges 1) of the half-tube N slide when. said tubeis in the actof being elevated or depressed, and against which stops catches p abutwhen the half-tube is elevated to the position shown in Fig. 3, and soprevent said part N from being entirely withdrawn from the collar D.

By reference to Fig. 1 it will be seen that when the lamp is closedthere is no access to the oil-reservoir A through the opening 0, butwhen the burner is elevated, as shown in Fig. 3, the openings 6 and cexactly register, and that in this position the body of thelamp may befilled with oil. It will also be seen that in the act of replenishingthe lamp the wickfla-me T will be far removed from the openin gs e e,and on the opposite side of the slidin g half-tube N said part N, thusin the act of filling the lamp with oil, serving as a shield against theignition of the oil and. the consequent explosion of the lamp in casevolatile oils are used. It will also be seen by reference to Figs. 2 and3 that when the burner is in an elevated position the wick-tube I may beturned out into a convenient position for trimming the wick, and thiscan be done while the wick is ignited without danger of explosion, asthe flame will be far removed from the openings 0 c, and also protectedfrom the evaporation of the volatile oil by the in terposing portion ofthe part N. It will further be seen that the entire wick-tube I, asshown in Fig. 5', may be removed from the body of the lamp for thepurpose of supplying a new wick, when the burner is in the elevatedcondition represented in Figs. 2 and 3, to effect which it is onlynecessary for the operator to lay hold of the thumb-screw 7i, raise therod 1" out of the slot 70 and withdraw the end 9 of the rod r out of theenlarged perforation f, situated opposite to the slot is in the collarD. It is only necessary further to state that the sliding portion Nabove its tubular part m is made to expand into the usual circularperforated base t and gallery t, made to receive and hold in place thelamp-cone t and lampchimney t by means of the screw t as ordinarilypracticed, andlastly, that the air-holes f of the collar D and theair-holes f of the part N exactly register, to admit air to the flamewhen the lamp is made to assume the position shown in Fig. 1.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is

1. So combining a wick-tube with a lampburner that it may be turnedoutward by its thumblever h r g for the purpose of trimming the wick, orbe removed therefrom for the purpose of supplying a new wick,substantially as set forth.

2. So applying a wick-tube to a lampburnor that the flame of the lampwhen the wicktube is turned outward for the purpose of trimming the Wickwill be in a direction opposite to the oil-supply openings of the lamp,and with an interposing portion of the lampburner between the flame andthe oil-supply openings, substantially as described.

3. The foot-piece l, in combination with the wick-tube I, for thepurpose set forth.

4. The detcnt l, in combination with the

